,和微生物群体作为地下水中地震活动的支持指标
Jaeyeon Kim1, Heejung Kim2, Dugin Kaown1
1School of Earth and Environmental Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
Scientific reports
|October 30, 2024
概括
地下水中的 (222Rn) 和 (220Rn) 同位素可以实时可靠地指示地震事件. 微生物群落进一步有助于确定受地震影响的区域,为地震监测提供了多方面的方法.
科学领域:
- 地质化学 地质化学
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 地震对地下水系统和人类人口产生重大影响.
- 使用地球化学和微生物指标识别地震活动和受影响区域是一项挑战.
- 对地下水的地震影响实时监测对于危险评估至关重要.
研究的目的:
- 验证使用 (220Rn), (222Rn),微生物多样性和水化学作为地震事件分析的合指标.
- 利用这些环境指标,评估实时地震监测的可行性.
- 为了将水化学数据与同位素和微生物发现相关联.
主要方法:
- 在地下水样本中分析 (220Rn) 和 (222Rn) 度.
- 微生物社区组成的表征.
- 地下水的水化学分析.
- 应用统计方法,包括自组织地图 (SOM) 和主要组件分析 (PCA).
主要成果:
- (220Rn) 检测在地震余震之前,与 (222Rn) 水平相关,表明它们作为实时地震指标的潜力.
- 特定的微生物类 (Peregrinibacteria, Firmicutes) 和属 (氧化,氧化硫细菌) 与检测到的和活跃的地震区域有关.
- 通过SOM和PCA分析的水化学数据支持了来自同位素和微生物指标的发现.
结论:
- (220Rn), (222Rn) 和微生物社区分析的结合使用为识别地震活动和受影响的地下水区提供了强大的方法.
- 这些指标适用于实时地震事件检测和更广泛的环境影响评估.
- 本研究确定了这些多方面的生态指标在地震学和环境监测中的理论和实际实用性.
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